Type-writing machine.



B. U. STICKNEY.

TYPE WRITING MACHINE;

APPLICATION FILED DEO.18,1912.

1,11,765, Patented June 30,1914.

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f1 STES PATENT Fl dlhtlld BURNHAM C. STIGKNEY, 0F ELIZABETH, NEW JERSEY, ASSIGNOB. T0 UNDERVTOOD TYPEWIRITEB COMPANY, 013 NEVT YORK, N. Y., A CQRPQIRIA'IIGN OF DELAWARE.

TYPE-WRITING MACHINE.

ioness.-

Patented June 36), 11.91.41.

Original application filed June 30, 1903, Serial No. 163,704. Divided and. this application filed December 18, 1912. Serial No. 737,381.

To all whom it may concern Be it known that I, BURNHAM G. STICK- nnr, a. citizen of the United States, residing in Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Type- Writing Machines, of which the following a specification.

My invention relates to typewriting machines, the present application being a division of my co pending application, No. 163,704, filed June 30, 1903.

The present invention relates more particularly to the type-bars and actuating means therefor.

The finger keys are on the forwardly extending arms of bell crank levers, which also have depending arms connected through links to pendent levers at the rear of the machine. The type-bars which extend forwardly from their fulcrum rod are connected through links to said pendent levers.

The accompanying drawing is a sectional elevation, view, partly diagrammatic, of a structure embodying my invention as used in a typewriting machine.

The framework of the machine comprises wallsforming a base 1. Forwardly extending type-bars 1 are pivoted at their rear ends upon a curved fulcrum rod 5 mounted in a segment -6, and strike rearwardly against a platen 7. The segment is radially slotted at S to receive the type-bar hubs. Each type-bar is provided with a lower-case type 9 and an upper-case type 10, the latter being uppermost when the typebar is in printing position, although this relation may be reversed within the scope of certain features of my improvements, and

the type-bars may be otherwise mounted.

The typebars may be operated by any suitable means, as for instance pull-links 11, extending rearwardly and downwardly from the type-bars, pendent levers 12 connected between their ends at 13 to said links, a horizontal rod 14: whereon said levers are fulcrumed at their upper ends, horizontal links 15 connected at 16 to the lower ends of said levers and extending forwardly, and key-bearing bell cranks fulcrumed upon a transverse rod 17 and having pendent arms 18 connected at 19 to said links 15, and forwardly extending arms 20 hearing the keys 21. Returning springs as 22 may be provided for the type actions.

Various modifications may be resorted to. The platen may be mounted in any ordinary way, as for instance in a platen frame to shift up and down in a non shifting paper carriage. The mechanismfor feeding the carriage, which supports the platen, may

be of any ordinary kind. For the sake of illustration it is shown as comprising upright detent and feeding dogs 107 and 108, cooperating with a rack 106 connected to travel with the carriage, the feeding dog 108 being normally in engagement with the rack. The dogs are mounted on one end of a suitably supported rock shaft 112 provided with an operating arm 115, which at its rear end is pivoted at 116 to a pendent link 117, whereby the arm is operated. At its lower end said link is pivoted. at 118 to the forward end of a rocker arm 119, which projects forwardly from a horizontal transverse rock shaft 120. A universal bar 121 is mounted upon the tops of a pair of arms 122 which rise from said rock shaft, and said bar lies in rear of the levers 12 of the type actions, so as to be operated thereby, the described universal bar frame being provided with a returning spring 123.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invent-ion, I claim:

1. In a front-strike writing machine, the combination with rearwardly striking typebars and a platen, of pull links extending rearwardly from the type-bars, pendent levers at the rear of the machine to which said links are connected between the lever ends, links extending forwardly from the lower ends of said levers, and key-bearing bell-cranks connected to the forward ends of said links.

2. In a typewriting machine, the combination of a rearwardly striking pivoted typenation of a typebar segment, type-bars pivotally' supported therein and having type bearing carms extending upwardly from their pivots, bell-crank key levers pivoted in front of said segment and having depending arms, links extending rearwardly from i said depending arms, links extending rearwardly and downwardly from the upwardly extending arms of the type-bars, and pend ent levers operatively connected below their fulcrums to all of said links.

4-,. In a typewriting machine, the combination of a machine frame, pendent levers supported at the rear of said frame, typebars, key-levers connected to the lower ends of said pendent levers and connections from the pendent levers to the type-bars, said connections engaging said pendent levers between their fulcrums and their lower ends.

5. In a typewriting machine, the combination of type-bars, bell-crank key levers pivoted adjacent to the type-bar pivots, vertically disposed pendent levers located at the rear of the machine, links connecting said lastnamed levers t0 the key levers, and means connecting the type-bars to the vertically disposed levers.

6. In a typewriting machine, the combination of a machine frame, vertically disposed pendent levers located at the rear of the frame, bell-crank key levers having depending arms, links connecting said arms to the lower ends of said first-named levers, typebars, and links connecting the typebars to said first-nan1ed levers below the fulcrums of the latter.

7. The combination of keys forming the keyboard of the typewriter, levers carrying said keys, said levers fulcrumed in rear of the keys and about on a level therewith, forwardly and downwardly extending arms on said levers, links connected to said levers t their lower ends and extending rearwardly, pendent levers to which said links are also connected, typeba-rs, and connecting means between said type-bars and said pendent levers.

8. The combination of rearwardly striking type-bars, pull links connected to said type-bars and extending rearwardly there from, pendent levers fulcrumed in rear of the type-bars, said links at their rear ends being pivoted to said levers between. the ends of the levers, bell-cranks mounted in front of the type-bars and comprising forwardly extending arms bearing keys, said bell-cranks also compr slng downwardly extending arms, and thrust llnks extending from said downwardl extendin arms to i th lower ends of said pendent levers.

9. The combination of rearwardly swinging type-bars, pull links connected to said type-bars and extendingrearwardly therefrom, pendent levers fulcrumed in rear of the type-bars, said links at their rear ends being pivoted to said levers between the ends of the levers, key-bearing levers, and thrust links extending rear-wardly from said key-bearing levers to the lower ends of said pendent levers.

1.0, The combinatio -with a series of keybearing bell-cranks having arms pendent from their pivots, of typebars overlying Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, I). 0." 

